.canvas{
    margin: 20px;
    padding: 20px;
    background: #fff;
    border: thin inset #aaa;
}

.canvas3{
    position: absolute;
    left: 0;
    top: 60px;
    margin: 20px;
    background-color: #fff;
    border: thin inset rgba(100, 150, 230, .5);
    cursor: pointer;
}

.readout {
    margin-top: 10px;
    margin-left: 15px;
    color: blue;
}